738 f. MUIR AND J. C. KERSHAW. 
the median ventral line, is a rather large light ochreous spot. 
Papillz round genital opening whitish. 
The newly-born young are uniformly pale dove-grey, and 
take four or five days to become dark, and several days 
longer before the spots appear ; at first being pale ochreous, 
and not becoming rust-colour till much later in life. 
Out of sixty-three specimens examined one had twenty-two 
pair of legs, the remainder only twenty-one; they decrease 
in size towards the ends, especially posteriorly, where the 
last pair are very small (fig. 3). Three spiniferous pads on 
each leg, except the last pair, where they are missing or only 
rudimentary ; the basal pads of the fourth and fifth pairs of 
legs divided into three parts; the opening of the modified 
nephridia situated on the central portion. Foot with three 
primary papille, one dorsal and two lateral, one on each side 
(fia. 2) ; on the last pair the dorsal papillz are nearer to the 
anterior lateral ones. 
When proceeding over plane surfaces the animal walks on 
the spiniferous pads, the feet being turned back on the dorsal 
side of the leg, and only brought into play when it is necessary 
to use the claws as hooks. The last pair of legs is not used 
for walking, and very often the penultimate pair do not come 
into play. 
Inner jJaw-claw with six accessory teeth, outer jaw-claw 
with none. ‘ Tongue” with six small teeth, the anterior two 
side by side, the four behind in a longitudinal row. 
Vagina, or genital opening, subterminal, behind the last 
pair of les, and near to the anus (fig. 3). 
The female genital organs consist of two long tubes, which 
meet together posteriorly to form the very short duct leading 
to the vagina, and anteriorly where they form the ovaries 
(fig. 4). 
The ovaries consist of a bilobate chamber about 1 mm. 
long, with morula-like walls filled with nucleated cells of 
various sizes which causes it to vary slightly in size and 
shape. It is attached to the median line of the septum, 
between the seventeenth and eighteenth pair of legs, by a 
